[eluser]PHP Creative[/eluser]
The following script checks to see if the user answer matches the correct answer.
user_answer[$i] | value = a
user_answer[$i] | value = b
user_answer[$i] | value = c
all radio fields (above)
orgid[$i] | value = $i
answer[$i] | value = (a or b, c)
$i = question id/number
Basically when question answer isn't selected an undefined offset error message is generated. Adding if empty or isset messes up the order.
Code:
foreach ($this->input->post('orgid') as $k =>$v) {
$orgid[$k] = $v;
}
$k = 0;
$m = 0;
while ($k <= 19) {
if ($_POST['user_answer'][$k] == $_POST['answer'][$k]) {
$correct++;
unset ($_POST['user_answer'][$k]);
unset ($orgid[$k]);
} else {
$incorrect++;
}
$k++;
}